What is a characteristic of polysulfide elastomeric materials?

Polysulfide elastomeric materials are known for their distinctive characteristics, one of which is a strong odor. This odor is typically due to the chemical composition of the material, which releases sulfur-containing compounds during the polymerization process. The strong smell can be quite noticeable and is a common aspect that dental professionals recognize when working with these materials. This characteristic is something to consider when selecting materials for dental impressions, as it can impact patient comfort and the working environment.

In contrast to the other options, polysulfide elastomers are not characterized by low stiffness; they have a relatively high level of stiffness, which contributes to their stability and dimensional accuracy. They also do not possess a quick setting time, as they generally require a longer working time compared to other impression materials, allowing for more precise application. The absence of odor is not accurate for polysulfide materials, reinforcing that their strong odor is a prominent feature that practitioners need to be aware of.